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v3.19.2

Summary of Significant Accounting Policies (Details) | Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018
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Accounting Policies [Abstract] |  |  |
Percentage of FIFO Inventory | 46.00% | 57.00% | 45.00%
Percentage of Weighted Average Cost Inventory | 54.00% | 43.00% | 55.00%

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- Definition The percentage of FIFO (first in first out) inventory to total inventory as of the balance sheet date if other than 100 percent. + References No definition available. + Details
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- Definition The percentage of weighted average cost inventory present at the reporting date when inventory is valued using different valuation methods. + References No definition available. + Details
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